John wilson brown



zsheets-shen 1. i J.'W. BROWN, JI'. I l l MEAT GHOPPER.

7. v A m y m j f I a ,/4 M. W'. No. a

(-No Model.)

(N Model.) zsheecs-sheet z J. W. BROWN, Jr.; MEAT CHOPPBR Patented 001:. 5,1897.

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UNITED vSTATES 4PATENT OFFICE.

JOHN TILSON BROVN, JR., OF PHILADELPHIA,- PENNSYLVANIA.

MEAT-CHOPPER.

SPECIFICATION forming part of Letters Patent No. 591,323, dated October 5, 1897. 'Application filed January l2l, 1896. Serial No. 576,331. (No model.)

To all whom it may concern:

Be it known that I, JOHN WILsoN BROWN, J r., a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements inwMeat-Choppers, of which the following isla specification.

This invention relates to certain improvements in machines for cutting meat into small fragments.

The invention further relates to the special construction Of the screw. f

The object of the invention is to provide for the neat fit of the screw within the ca sing, so that it can be made true wit-hout much machinery and so that when the parts wear thescrew will not be forced out of line, the bearing of the screw being entirely in the casing.

In the accompanying drawings, Figure l is a side elevation of the meat-cutting machine with the casing insection.V Fig. 2 is an end View looking in the direction of the arrow l, Fig. l.. Fig. 3 is an end View looking in the Fig. 4 is a transverse section on the line 4 4, Fig. l. Fig. 5 is a section on the line 5 5, Fig. l. Fig. 6

is a section on the line 6 6, Fig. l; and Fig. 7

forations a for the escape of the cut meat.

The case has a series of longitudinal ribs a2, some of which extend only to the hopper A', while others extend to the rear of the case.

B is a combined 'feed-screw and cutter, formed as clearly shown'in Fig. l. The main body of the screw fits loosely the ribbed portion of the casing, but the tapered end of the screw fits against the tapered portion of the casing, and the threads of this portion of the screw form cutters which-act in conjunction with the edges of the perforations a to cut the meat. I

The solid portionb of the screw, which 1s larger in diameter than the screw itself, is slightly tapered 'to it snugly the rear of the casing and prevents any Juice escaping through this end of the meat-cutter. The screw, therefore, has two bearings-one 1n the tapered portion of the casing and the other 1n the rear of the casing. Extending from the rear of the screw is a shaft B', to which is secured the handle B2.

It will be noticed that the screw-thread b extends from the rear of the screw up to the forward end, while the thread bextends from the point :c near the front edge of the hopper to the forward end of the screw, and the two threads b2 b3 extend from which is the point where the casing commences to taper, to the forward end of the screw, the threads b2 b3 commencing at opposite sides, as shown.

Thus while the meat is subjected tothe ac-v vtapered lugs c c, which tend to force the screw into the casing, and on the casing are two beveled lugs a3, back of which the lugs of the follower pass. The casing is cut away, as shown clearly in Fig. 3, and when the follower is turned and its lugs are in line with these openings the screw can be readily removed with the follower thereon, so that the parts will not be lost. Any wear of the screw against the casing can be taken up by tightening the follower.

In order to prevent the follower being detached by the turning of the ring, a washer E is mounted between the follower and the enlargement b5 on the screw. This washer has a projection c, which enters a cavity a4 in the casing, Fig. 3, which prevents the washer from turning with the screw, so that, while this washer does not interfere with the longitudinal movement of the screw, it will prevent the follower from turning after once being set.

It will be noticed that the opening c' in the follower through which the shaft B of the screw passes is considerably larger than the shaft, so that the entire bearing of the screw is within the casing and not in a loose part, which is apt to move out of alinement. The

IOO

follower has suitable extensions c2, by which it can be turned.

Depending from the casing A is an extension A2, having two feett' 'L' and a leg I', which is turned at the bottom so as to be in a position between the two feet, and in this leg is a set-screw i2, by which the machine can be rigidly clamped to a table.

In some instances the rear bearing of the easing may be removable with the screw, as shown in Fig. 7, being in the form of a disk h6, having a tapered periphery, which when the screw is in place rests in the tapered opening of the casing. A spring 57 may be inserted between the disk and follower and adapted to the threaded opening in the casing, as shown in said figure, instead of being provided with lugs.

I claim as my inventionl. The combination in a meat-chopper, of the casing made in one piece and having a hopper, a perforated and tapered forward end and an open rear end, a combined feed-screw and cutter adapted to be inserted into the casing through the opening .in the rear end, and having a shank to which the handle is Secured and a follower adapted to the open end of the casing and having an opening greater in diameter than the shank of the feed-screw, the follower being free from contact with the shank, and serving only as a means of forcing the cutting portion of the feed screw against the perforated and tapered front end of the easing, the combined feed-screw and cutter having its bearing solely in the casing, substantially as described.

2. The combination in a meat-chopper, of the casing made in one piece and having an open rear end, a hopper, a straight body with straight longitudinal ribs therein, and a perforated and tapered front end, said ribs terminating at the perforated end portion, with a combined feed-screw and cutter, having its bearing within the casing, and a follower adapted to the open rear end of the casing and acting to force the cutting portion of the feed-screw against the perforated portion of the casing, substantially as described.

3. The combination in a meat-cutter, of the casing having a straight barrel and a perforated and tapered end portion, a combined feed-screw and cutter having its bearing solely within the casing, the threads of said screw being arranged substantially as shown, one thread extending throughout the length of the screw, another thread extending from the hopper forward and the two remaining threads commencing at the point where the case tapers and extending to the end, substantially as described.

4. The combination in a meat-chopper, of the casing having a hopper, a perforated and tapered forward end and an open rear end, a combined feed-screw and cutter tapered at the forward end and having a solid portion ZJ at the opposite end, the tapered portion of the feed-screw fitting the tapered portion of the casing and the solid portion of the feedscrew fitting snugly the rear of the casing, the main body of the screw fitting loosely the ribbed portion of the casing, a follower adapted to hold the screw in position in the casing and means for turning the screw, substantially as described.

5. The combination in a meat-chopper, of the casing having a hopper, a perforated and tapered forward end and a tapered opening at the rear end, a combined feed-screw and cutter adapted to be inserted in the easing through the opening in the rear end, said feed-screw having a tapered end adapted to the tapered portion of the casing and a tapered solid portion b4 adapted to the tapered opening in the rear of the casing, the main body of the screw loosely fitting the easing, a shank on the feed-screw adapted to fit the handle and a follower for holding the feedscrew in position within the casing, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN IVILSON BROWN, JR.

lVitn esses:

WILL. A. BARR, Jos. II. KLEIN. 

